參數(shù)資料
型號(hào): SN74AVC2T45YEPR
廠商: Texas Instruments, Inc.
英文描述: DUAL BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3 STATE OUTPUTS
中文描述: 雙位雙電源總線收發(fā)器可配置電壓轉(zhuǎn)換和3態(tài)輸出
文件頁(yè)數(shù): 9/21頁(yè)
文件大?。?/td> 376K
代理商: SN74AVC2T45YEPR
www.ti.com
Power-Up Considerations
SN74AVC2T45
DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES531F–DECEMBER 2003–REVISED MAY 2005
A proper power-up sequence always should be followed to avoid excessive supply current, bus contention,
oscillations, or other anomalies. To guard against such power-up problems, take the following precautions:
1. Connect ground before any supply voltage is applied.
2. Power up V
CCA
.
3. V
CCB
can be ramped up along with or after V
CCA
.
Table 1. Typical Total Static Power Consumption (I
CCA
+ I
CCB
)
V
CCA
V
CCB
UNIT
0 V
0
<0.5
<0.5
<0.5
<0.5
<0.5
1.2 V
<0.5
<1
<1
<1
1
1
1.5 V
<0.5
<1
<1
<1
<1
<1
1.8 V
<0.5
<1
<1
<1
<1
<1
2.5 V
<0.5
<1
<1
<1
<1
<1
3.3 V
<0.5
1
1
<1
<1
<1
0 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
μ
A
9
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